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  1. Hello! I am new at PLC programming. I am using TM221CE16R PLC with TM3AI8 analog input module and SoMachine Basic v1.6. I am trying to scale analog input value. I am using 4-20 mA pressure sensor. I managed my wiring so that I get raw values in SoMachine Basic. But I don't know how to scale these values to usable values. My sensor works in range 0 - 16 bar. What is best way to get values? Is it PID function block or multioperand function block using equations to get range 0 - 16? I will appreciate your help.   Thanks in advance!
  2. SCL3(487)

    CP1L-L14DRD CP1W-AD041 Trying to scale an input 0-10 VDC = 0-10000 millimetres. My source word changes value but my D100 word does not and I get no change in the result. I have a SCL3(487) D100=0000/0 offset D101=1770/6000 X D102=2710/10000 Y D103=2710/10000 Max D104=0000/0 Min Any ideas?  
  3. Hello all, I am trying to write one FB for Analog Scaling in GX Works 3 Software for my Mitsubishi FX5U Plc... Unfortunately i am not aware very much about ST Language instructions of Mitsubishi Softwares. So the Code is Giving 5 Errors, i think the error are due to incorrect data conversion expressions, Can you please correct me with my code ? Here are the Variables RAW_MIN                   Word [Signed]                      VAR_INPUT RAW_MAX                  Word [Signed]                      VAR_INPUT SCAL_MIN                  FLOAT [Single Precision]    VAR_INPUT SCAL_MAX                FLOAT [Single Precision]    VAR_INPUT AI_RAW                      Word [Signed]                       VAR_INPUT SCALED_OP_REAL   FLOAT [Single Precision]    VAR_OUTPUT SCALED_OP_INT      Word [Signed]                       VAR_OUTPUT Here is the Code SCALED_OP_REAL:=(((SCAL_MAX-SCAL_MIN)*(INT2FLT(AI_RAW)-INT2FLT(RAW_MIN)))/(INT2FLT(RAW_MAX)-INT2FLT(RAW_MIN)))+SCAL_MIN; SCALED_OP_INT:= FLT2INT(SCALED_OP_REAL);
  4. Hello there, Today i have commissioned my first project with OMRON make PLC. Model: CP1L-EM40DT1D. (CX-Programmer) I have 2 built in 0-10V Analog Inputs on the plc. for analog input no-1 i get the digital value of 0-1000 in specific plc register address corresponding the 0-10V. (Factory setup) But today on site, i have noticed that some miner value of 0 to 50 is always coming and fluctuating very fast in that register, however the transmitter are genetaring 0.0V only (I have checked using digital multimeter with high precision) PLC and Transmitter are already grounded and all the cable connections are tight as well. so how to overcome this high fluctuating value ? is there any setting to filter the input ?
  5. CP1L-EL/EM Built In Inputs

    Version 1.0.0

    66 downloads

    FB used for Built In Analog Inputs of CP1L-EL/EM With Scaling Set Up Included Demo_Built_In_v1.bak Demo_Built_In_v1.cxp Demo_Built_In_v1.opt
  6. View File CP1L-EL/EM Built In Inputs FB used for Built In Analog Inputs of CP1L-EL/EM With Scaling Set Up Included Demo_Built_In_v1.bak Demo_Built_In_v1.cxp Demo_Built_In_v1.opt Submitter MPOLITIS Submitted 07/22/19 Category PLC Sample Code
  7. Analog Scaling Problem

    hi there. i am using FX2n-4AD for measuring the volume of tank in litres. The problem is that litres tank can hold is 10,000 .  and card resulation is max 1000 digital value for 20ma. so conversion factor 10, 000 / 1000  = 10liter for one digital raw value . which is much more as program will read for multiple of tens factor.. can any other solution for this problem with the same hardware  
  8. GE Historian5.5 spikes?

    Good morning ladies and gents, I was wondering if any of yu have experienced issues with GE Historian 5.5, namely failing to scale a data point to ENG units and saving the raw value. thanks in advance
  9. How to Scale a analog value?

    hello guys....How are you all? im new to siemens plc, so i dont know how to scale analog value in STEP7 plc's? and also i dont know how to use AI,AO,DI,DO? how to address them? can anyone help me? 
  10. I have a problem trying to scale a floating number coming from an HMI to a value to use on PID instructions.My problem is on the scaling instruction.Whenever i try to run on cx simulator it gives me an error My setup of the scale parameters are (using SCL3(487)) D616 #0000 D617 &350 D618 #FFFF D619 #FFFF D620 #0000 My ladder to use the float number is: *F(456) Value +10,0 D2120 FIX(450) D2120 D2062 SCL3(487) D2062 D616 D2072 The error that throws is 0x80F0 Thanks in advance for any help PS Also tried all Scaling instructions.I think my problem is the setup of parameters for scaling instructions  
  11. Version 1.0.0

    311 downloads

    This is just an example how to convert an analog signal (0-10V)  Library used: AnalogFX_V310
  12. View File FX0N analoge module, scaling and offset. This is just an example how to convert an analog signal (0-10V)  Library used: AnalogFX_V310 Submitter HwT Submitted 03/13/16 Category PLC Sample Code
  13. Setting up 1794-IF8IH card

    Good Afternoon, This is the first time I have used a 1794-IF8IH and was after some help with setting up the analogue scaling. Normally in logix5000 on analogue cards you can select the desired scaling for each channel of the card under the configuration tab by selecting 0-20mA or 0-10V etc in the drop down boxes. According to page 16 of the manual http://literature.rockwellautomation.com/idc/groups/literature/documents/in/1794-in115_-en-p.pdf it appears as if this has to be setup in the PLC tags. Is anyone able to give an example of the PLC tag address where I would place a value which represents the scaling that I was hoping to use ie: DropNumber:5:C:Ch0DataFormat_0   Cheers,   Robbo    
  14. ROC800 SCALING ISSUE

    Hi. So, technically the ROC is a flow computer but hopefully I can find some help. We are using the DS800 in the Roc. I have pressure transmitters in the field. They are ranged 0-2000 PSIG. Im using the ROC as the master and Freewave radios as slaves. They are transmitting the transmitters signal wireless and it comes in MODBUS. When I perform a loop check, the URV comes into the ROC at 1984 PSIG on all my transmitters. I have checked the float scales and they are correct. They are using an integer scale and I am not familiar enough with it in order to mess with it. I am currently doing some research on the subject. I was hoping someone could help shine some light on this and help me see it differently. FYI, I have already contacted supportnet at Emerson and the keep insisting that the transmitters aren't calibrated correctly. I have already confirmed that they are calibrated correctly and they are all brand new. They are ranged correctly as well. I can provide and roclink files if that would help. Thanks!!
  15. Scaling in FX 3GE PLC

    Can anybody please help me? I have FX 3GE plc and reading (4-20) mA signal using built in analog input as 0 to 3200 counts. I want to display this counts as (0-1500) RPM. I searched the manuals, SCL and SCL2 instruction will work only in FX 3U PLC not in FX 3GE plc. Please help me to scale the values. Thanks in advance With Regards Joshua jo2ham@yahoo.co.in